During the Second World War, the American armed forces put a relatively large emphasis on the development of broadly understood medical services. In general, they were subordinate to the US Sanitary Corps, which was established in the summer of 1917, so it had its roots in the previous World War. At relatively low organizational levels (e.g. company), paramedics (called "medic" for short) were responsible for helping the wounded, who underwent specialist training and had considerable knowledge in the field of first aid and treating all types of wounds. In extreme cases, they were even able to - in the field! - perform a tracheotomy on a wounded soldier. Their hallmark was, of course, the red cross on a white background worn on helmets and sleeves. It is worth adding that there were about 30 paramedics in the infantry battalion of about 400-500 men. After initial treatment, the wounded soldier was most often taken to a field hospital or the so-called Evacuation Hospital, where he underwent more complicated surgeries and medical procedures. It is generally assumed that the American medical services during World War II were very efficient, and the time it took to get the wounded from the battlefield to the hospital was relatively short. All this made it possible to restore many wounded American soldiers to physical fitness.
At the time of the outbreak of World War II, the American Navy was considered one of the most powerful in the world, but in the course of this military conflict, it definitely outstripped other navies in the world in terms of the number of ships built (often also their quality) - primarily the Japanese. At the end of the war in the Pacific, it had, among others, 27 aircraft carriers and 18 battleships. It also had the most powerful naval aviation in the world. It is also worth remembering that at the time of the outbreak of the war in the Pacific, the US Navy had about 340,000. people, and at the time of its completion - around 3.4 million people! Each of the US Navy seamen during World War II underwent the so-called Basic Training, which emphasized the physical condition of the soldier, his familiarity with weapons, drill and other basic activities in the army. Only after that, the seamen underwent specialist training, such as gunmen, radar operators or engine room crew. Most of the senior US Navy officers graduated from the Annapolis Naval Academy, while many junior officers received training under the V-12 Navy College Training Program. It is estimated that about 125,000 people participated in it between 1943 and 1947.